Mongodb 如何打印脚本的结果?

Mongodb 如何打印脚本的结果?,mongodb,Mongodb,我有一个非常基本的脚本文件,我想运行它并输出它。内容如下: var data = db.participants.aggregate( {$match: {survey: ObjectId("548f9d0329ce94df22731668")}}, {$group:{ _id: "answers.question", totals: {$sum: 1} } } ); printjson(data); 我

我有一个非常基本的脚本文件,我想运行它并输出它。内容如下:

var data = db.participants.aggregate(
    {$match: {survey: ObjectId("548f9d0329ce94df22731668")}},
    {$group:{
            _id: "answers.question",
            totals: {$sum: 1}
        }
    }
);

printjson(data);
我尝试过加载('/path/to/script.js'),但它输出了大量信息,如下所示:

    "_firstBatch" : [
        {
            "_id" : "answers.question",
            "totals" : 18566
        }
    ],
    "_cursor" : {
        "next" : function next() { [native code] },
        "hasNext" : function hasNext() { [native code] },
        "objsLeftInBatch" : function objsLeftInBatch() { [native code] },
        "readOnly" : function readOnly() { [native code] }
    },
    "hasNext" : function () {
    return this._firstBatch.length || this._cursor.hasNext();
},
    "next" : function () {
    if (this._firstBatch.length) {
        // $err wouldn't be in _firstBatch since ok was true.
        return this._firstBatch.pop();
    }
    else {
        var ret = this._cursor.next();
        if ( ret.$err )

我怎样才能只显示脚本的结果而不显示所有其他垃圾呢?

您将返回一个
迭代器
光标

或:

data.forEach(printjson);
while (data.hasNext()) {
   printjson(data.next());
}